Home / 28,557.06-42,839.69-8,837.13

Finding the Fourth Proportional to 28,557.06, 42,839.69 and 8,837.13

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Solution

The fourth proportional to 28,557.06, 42,839.69 and 8,837.13 is: 13,256.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,557.06 : 42,839.69 = 8,837.13 : x
  2. Step 2: Convert to fraction form
    28,557.06/42,839.69 = 8,837.13/x
  3. Step 3: Cross multiply
    28,557.06x = 42,839.69 × 8,837.13
  4. Step 4: Simplify right side
    28,557.06x = 378,579,865.50
  5. Step 5: Solve for x
    x = 378,579,865.50/28,557.06
  6. Step 6: Final answer
    x = 13,256.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.